1. Intro S'11 - Last glacial maximum- 21,000 y Last...

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GLY3074 Oceans and Global Climate Change Ellen Martin 362 Williamson Hall eemartin@ufl.edu http://web.clas.ufl.edu/users/emartin/GLY307411/GLY3074S11.html web.geology.ufl.edu
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Climate Weather Short term variability Daily atmospheric state Climate (World Meteorologic Organization) 30 year average of atmospheric state Modulated by the seasonal cycle “expected weather”
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Climate Change Longer term variability “Change” implies a causative factor “Forcing factor” What controls climate? What can cause climate change?
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Climate Change Paleoclimate vs. modern climate vs. future climate Geology adds “paleo” Climate in past important for understanding future change
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Climate Change Climate Variability (yrs) Time scales of climate change
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Times of Climate Change Dust bowl- drought in the 30’s Little Ice Age- 1400-1850
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Unformatted text preview: Last glacial maximum- 21,000 y Last greenhouse world ~100 Ma Faint Young Sun- billions of yrs ~33 million years ago 100 m 143 Nd/ 144 Nd Fossil fish tooth Climate System-Earth System Science Atmosphere Geosphere- land Cryosphere-ice Hydrosphere-ocean Biosphere- vegetation Atmosphere Biosphere Geosphere Hydrosphere Cryosphere Climate Change Ruddiman, Fig. 1-5 Climate Change Forcing Climate System Geologic Record Proxies Input Output 1. Describe- what does the plot show? 2. Interpret- what do the data indicate? 3. Predict- what would you expect a continuation of the temperature plot to look like? 1. How were the data collected? Atmospheric CO 2 concentrations Surface temperature from Antarctica...
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This note was uploaded on 07/08/2011 for the course GLY 3074 taught by Professor Ellenmartin during the Spring '09 term at University of Florida.

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1. Intro S'11 - Last glacial maximum- 21,000 y Last...

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